States of Matter
What are the three States of Matter?
Solid
Liquid
Gas
Buoyancy
hint * boing, boing*
The ability to float
A physical change can best be defined as....
A. a permanent change
B. A type of change in size, shape and/or form
B- a physical change is reversible
Define a natural resource
Something found in nature.
Does Air take up space? Yes or No
Yes!
We placed a floating object in water; once a glass was placed over top of the object, it sank. This happened because air filled the glass.
Give an example of each state of matter.
Answers will vary..
Solid- pencil, desk, chair ( things you cannot walk through; usually are pretty hard objects!)
Liquid- water, milk, gatorade
Gas- steam, clouds, oxygen ( things you can walk/ fly through)
If an object is heavy, it will sink. Does this object have a high or low density?
High Density
think ---- *heavy- high density*
*Light- low density*
A chemical change can best be defined as ...
A. a permanent change
B. a type of change in size, shape and/or form
A! When a chemical change occurs a new substance is formed. It is non-reversible.
Give two examples of natural resources
Answers will vary.
Examples- trees, air, river, lake, etc.
Which liquid had a greater density?
A. Water
B. Syrup
B. Syrup
If you touch these two liquids, you can feel the thickness of syrup. It feels heavier.
Which state of matter can best be described as " flows and takes the shape of its container"?
a. solid
b. liquid
c. gas
A liquid can flow and take on the shape of the container in which they were placed.
Activity- pour milk into a glass.
Define a manmade resource
A resource made by a person or a factory.
Is this a chemical or physical change?
Burning a piece of paper
Trees are natural resources. What kind of things can you make using trees?
Lumber for homes
Paper for magazines
Does Temperature Affect the states of matter? Yes or No
Yes, because of a change in temperature
examples-
Ice cube melts, and turns into water.
The water is placed into a freezer and turns into a solid ice cube.
The sun heats up the ocean, and water vapor escapes into the air.
An ice cube melts ...what does this show?
a. Liquid changing into a Solid
b. Solid changing into a Liquid
c. Liquid changing into a Gas
B. A solid (ice cube) changed into a liquid (water)
Define Evaporation
When the ocean water rises or escapes into the air.
This shows a liquid changing into a gas.
Is this a physical or chemical change?
Mixing strawberries and oranges in a blender
This is a physical change- its a Strawberry-Orange Smooth.. you can still taste the two flavors; they have only changed in size, shape and form.
A wooden cabinet is an example of a natural resource.. true or false
False; the wood itself is natural, however chemicals and heat were used to turn the wood into a wooden cabinet with doors.
What is the first and second step of the Scientific Method?
1. Develop a question you can investigate.
2. State your hypothesis
_______ is anthing that has mass, and takes up space.
A. Motion
B. Matter
C. Means
MATTER.... haha you matter :) get it?
What is the definition of non-reversible change?
A change that cannot be fixed or changed back.
One is a chemical change; one is a physical change. Which is which?
A. Putting glasses on your face
B. Having your arm cut off
Putting glasses on your face is a physical change because you can easily remove them and you are still yourself.
Having your arm cut off is a chemical change because you cannot grow another arm.
Most people use __________ resources to create ___________ objects.
You must give an example!
Fill in the blank.
Most people use natural resources to create manmad objects.
Examples- People use sand to create glass bottles. People use fruits/vegetables to create lotion. People use wheat, which is a type of grass, to create cereal.
The regular soda can sank; the diet soda can floated. Which can had a greater density?
The regular soda can because it contained tons of sugar!